ANALYSIS OF 
THE SPORY OF- THE, BIRDS. 
Wildl SDODY IAN ES. 
THE following brief analysis of the chapters is made 
with the hope of better enabling the reader to recall or 
review the essential facts and principles mentioned. 
The suggestions for study are intended only as stimuli 
in the observation of such simple examples as may fall in 
the average reader’s way without special excursions, 
slaughter, and dissections. 
CuaprerR I,—The early ancestry of the birds lies in the primi- 
tive vertebrates, but within the reptiles and lizards, shown chiefly 
through skeleton and methods of multiplication; the large egg 
not found elsewhere. A bird is characterized by wearing 
feathers. 
Suggestions for Study.—Read in encyclopedias about Dino- 
saurs, Pterodactyls, and the Archwopteryzx. Consult any work on 
zodlogy for characteristics of the five groups of vertebrates. 
CHAPTER I].—How birds first flew. First use of feathers 
and tail. 
For Study.—Examine a bat’s wing, and compare with Ptero- 
dactyl; note how insects fly; parachutes of the flying rodents, 
lemurs, etc. Observe action of a bird’s tail in alighting or sud- 
denly rising. 
Carter II].—Use of wings in climbing. Claws on modern 
birds noted. Skeleton and muscles of fore leg much modified in 
wing. Wings did not grow out as wings. Birds may have walked 
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